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supertech synthetic gear lube 75w-90 #4661852
02/10/18 11:02 AM
02/10/18 11:02 AM
Joined: May 2013
Posts: 150
Peace valley, Missouri
Fitter30 Offline OP
Fitter30  Offline OP
Joined: May 2013
Posts: 150
Peace valley, Missouri
Has the APIGL-5 rating have run Mobil 1 in a open differential in a 03 astro van. Should I change brands? It has 200,000 miles on it.

Re: supertech synthetic gear lube 75w-90 [Re: Fitter30] #4661869
02/10/18 11:22 AM
02/10/18 11:22 AM
Joined: Oct 2014
Posts: 1,343
NoVA
Jimzz Offline
Jimzz  Offline
Joined: Oct 2014
Posts: 1,343
NoVA
I have used a lot of super tech 75w90 gear oil with no issue. I say go for it if you need to change. I usually run 100k on a open diff that does not tow much.


yup
Re: supertech synthetic gear lube 75w-90 [Re: Jimzz] #4661886
02/10/18 11:34 AM
02/10/18 11:34 AM
Joined: Apr 2017
Posts: 426
Mississippi
Speak2Mountain Offline
Speak2Mountain  Offline
Joined: Apr 2017
Posts: 426
Mississippi
Just got my MTF changed w/ST. So much better. Do it.

Re: supertech synthetic gear lube 75w-90 [Re: Fitter30] #4662122
02/10/18 04:23 PM
02/10/18 04:23 PM
Joined: Nov 2013
Posts: 362
Fly-over country
zuluplus30 Offline
zuluplus30  Offline
Joined: Nov 2013
Posts: 362
Fly-over country
It's a good lube. Less than $6 per quart. GL-5, MT-1, J2360, MIL-PRF-2105E. It meets all the right specs.

Re: supertech synthetic gear lube 75w-90 [Re: Fitter30] #4662195
02/10/18 05:38 PM
02/10/18 05:38 PM
Joined: Jun 2002
Posts: 19,478
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,478
Iowegia - USA
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why are oil filters placed over chassis rails and cross members?
Re: supertech synthetic gear lube 75w-90 [Re: MolaKule] #4662287
02/10/18 07:50 PM
02/10/18 07:50 PM
Joined: Feb 2008
Posts: 288
Michigan
Spartanfool Online content
Spartanfool  Online Content
Joined: Feb 2008
Posts: 288
Michigan
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?

Re: supertech synthetic gear lube 75w-90 [Re: Fitter30] #4662398
02/10/18 11:14 PM
02/10/18 11:14 PM
Joined: Nov 2004
Posts: 1,168
Metro Detroit
cos Offline
cos  Offline
Joined: Nov 2004
Posts: 1,168
Metro Detroit
Spartanfool,

You might want to try a dedicated manual trans fluid.

I run a mix of Amsoil's MTF and MTG.


'18 GMC Terrain
'09 Ford Fusion




Re: supertech synthetic gear lube 75w-90 [Re: Spartanfool] #4662400
02/10/18 11:21 PM
02/10/18 11:21 PM
Joined: Dec 2006
Posts: 19,101
Dallas,Tx USA
aquariuscsm Online content
aquariuscsm  Online Content
Joined: Dec 2006
Posts: 19,101
Dallas,Tx USA
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


I think some Subaru's actually spec a GL5 diff fluid in their manual trannies.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 5W20

Re: supertech synthetic gear lube 75w-90 [Re: aquariuscsm] #4662551
02/11/18 07:44 AM
02/11/18 07:44 AM
Joined: Feb 2008
Posts: 288
Michigan
Spartanfool Online content
Spartanfool  Online Content
Joined: Feb 2008
Posts: 288
Michigan
Originally Posted By: aquariuscsm
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


I think some Subaru's actually spec a GL5 diff fluid in their manual trannies.


Yes, it is spec'd for GL5.

Re: supertech synthetic gear lube 75w-90 [Re: Spartanfool] #4663315
02/11/18 08:01 PM
02/11/18 08:01 PM
Joined: Jun 2002
Posts: 19,478
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,478
Iowegia - USA
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


Not if it is a Subaru with a common sump driveline system.

Ford XT-75W90-QGT Carries a GL-5 rating as well and does have the proper friction modification for manuals', whereas the SuperTech and MAG1 does not.

Last edited by MolaKule; 02/11/18 08:12 PM.

Why are oil filters placed over chassis rails and cross members?

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